Siemens SIPROTEC 4 7SJ61 - Page 348

Functions Pos. 14
and 15
50BF Breaker failure protection
74TC Trip circuit monitoring
— Cold-load pickup (dynamic setting changes)
— Inrush stabilization
86 Lock out
IEF — Intermittent ground fault P A
50Ns/51Ns
87N
Sensitive ground fault detection High-impedance ground fault
differential protection
F B
2)
IEF 50Ns/51Ns
—
87N
Sensitive ground fault detection
Intermittent ground fault
High-impedance ground fault differential protection
P B
2)
motor IEF 50Ns/51Ns
—
87N
48/14
66/86
51M
Sensitive ground fault detection
Intermittent ground fault
High-impedance ground fault differential protection
Startup-time monitoring, locked rotor
Motor restart inhibit
Load jam detection in motors, motor statistics
R B
2)
motor 50Ns/51Ns
87N
48/14
66/86
51M
Sensitive ground fault detection
High-impedance ground fault differential protection
Startup-time monitoring, locked rotor
Motor restart inhibit
Load jam detection in motors, motor statistics
H B
2)
motor 48/14
66/86
51M
Startup-time monitoring, locked rotor
Motor restart inhibit
Load jam detection in motors, motor statistics
H A
IEF = Intermittent ground (earth) fault protection
1)
only for non-sensitive ground current transformer if the 7th digit = 1, 5, 7
2)
for isolated/compensated networks, only for sensitive ground current transformers if the 7th digit = 2, 6
Automatic Reclosing (79)
Pos. 16
Without 79 0
79 With AWE 1
Special model Supplement
with ATEX 100 approval (for the protection of explosion-protected motors of protection type
increased safety “e”
+Z X 9 9
Ordering Information and Accessories
A.1 Ordering Information 7SJ61 V4.9
348 SIPROTEC 4, 7SJ61, Manual
C53000-G1140-C210-6, Edition 05.2016